Purple obelisks

Stand in the glowing ring until it finishes charging. The tower opens a spawn surge for a 30-second window, pulsing with energy and showing the same countdown as green. Monolith Bonus Duration research stretches that window the same way it stretches timed monolith bonuses. Unlike yellow’s damage and green’s radius-bound field, the surge has no spatial component at all. It doubles the zone’s Vora spawn rate for as long as the window is open, so more Vora arrive across the whole zone, not just near the tower. When the countdown reaches zero the surge ends and the tower goes inert.

If the pet is still in the charge ring when a purple tower is completed mined by a mining tool, the surge still opens. A mined-out purple tower keeps standing and doubling spawn rate until the window closes, then sinks. The window is never cut short by mining.